Chrome/Firefox console.log always appends a line saying 'undefined'

Question

Every time console.log is executed, a line saying undefined is appended to the output log.

It happens in both Firefox and Chrome on Windows

Answer 1

If you're using console.log to emit multiple values in a single line, here's a hacky alternative:

var1 + ' ' + var2 + ' ' + var...

(Better ideas welcome, this might blow up in certain circumstances)